Creep Catcher vigilantes under fire over death of mentally ill woman in video

Katelynn Ariel McKnight's life was turned upside down in April when a man showed up on her doorstep in Edmonton, pointed a camera phone in her face and accused her of trying to lure a 14-year-old girl online.

"I can't believe that you would accuse me of this," she told him through gritted teeth, her hands shaking. "I was sexually exploited when I was a child."

She told him her phone had been stolen four days earlier and that she'd just been released from the hospital after a suicide attempt.

Five months later, on Sept. 7, McKnight died. Her friends and family say she took her own life. She was 27.

Edmonton police say her death has been ruled non-criminal but that an investigation into the circumstances surrounding it is ongoing.